UKCMG Industry Forum November 2006

Size: px
Start display at page:

Download "UKCMG Industry Forum November 2006"

Transcription

1 UKCMG Industry Forum November 2006 Capacity and Performance Management of IP Networks Using IP Flow Measurement

2 Agenda Challenges of capacity and performance management of IP based networks What is IP flow? The benefits of deploying IP flow measurement Market direction with regard to IP flow tools IP flow measurement overhead Summary and conclusions Capacitas

3 Challenges Enterprise IP networks typically consist of a large number of infrastructure components IP networks are shared resources IP networks service a large and diverse number of workloads Historically there were a limited set of tools available with which to analyse the workload mix on an IP network Contrast this to server environments where workload accounting tools are prevalent WAN bandwidth capacity is expensive Capacitas

4 Performance Management Challenges Corporate Data Centre CRM Intranet Financials Why is this link congested? Internet Manchester Office Newcastle Office London HQ Capacitas

5 Cross-Charging Challenges Corporate Data Centre CRM Intranet Financials Proportion of internet network traffic that is ? Internet Manchester Office Newcastle Office London HQ Capacitas

6 Capacity Management Challenges Corporate Data Centre CRM Intranet Financials Internet Manchester Office What is the baseline network demand of CRM for London users? London HQ Newcastle Office Capacitas

7 Capacity Planning Challenges Corporate Data Centre CRM Intranet Financials Internet Manchester Office What is the breakdown of network demand by application type? Newcastle Office London HQ Capacitas

8 Challenges Traditional SNMP-based performance monitoring does not provide sufficient information with which to deliver bestpractice capacity management We must be able to characterise the network workload in order to deliver best-practice network capacity and performance management We need to know the type of network workload AND where it's coming/going to. Increasingly important as enterprises adopt multi-service networks Voice/data convergence is now a reality Capacitas

9 Limitations of Probe Based Solutions Historically, probe-based solutions have been deployed to measure workload mix on the network A number of limitations with this approach including: RMON-based solutions can capture conversations but not flows Scalability - a probe is required at each and every measurement point Cost Capacitas

10 What is IP Flow? An IP flow is defined by the following 7 unique keys over a predefined time window: Source IP address Destination IP address Source port Destination port Layer 3 protocol type Differentiated Services Code Point (DSCP) Input logical interface If two packets have the same values for all 7 keys, then both packets are part of the same IP flow DSCP is a 6-bit code used for IP class of service Capacitas

11 What is IP Flow? Corporate Data Centre CRM ; Source port 777 An IP flow enabled router Measurement enabled on a per interface basis Interface 1/0 Internet Manchester Office x London HQ x Newcastle Office x Capacitas

12 Source IP address Destination IP address Source port What is IP Flow? Destination port 777 Layer 3 protocol TCP DSCP Input interface 1/0 In this case the source and destination port for CRM is 777 This packet is part of a CRM flow between a CRM server and a client at the London site, in the traffic class Capacitas

13 Flow information (Source IP address, destination IP address, etc) 2. After the flow expires, the IP flow enabled router exports the summarised information about the flow to a collector engine Total bytes What is IP Flow? Total packets Collection engine Exporter 1. Router (exporter) gathers information about the flows on its inbound interfaces and stores temporarily in its cache 3. Management application for reporting, analysis, etc. Management application Capacitas

14 What is IP Flow? Measurement is carried out at the router We use capabilities that are already bundled in the router software, leveraging the existing investment No need for probes Investment required in a collection engine and management application Capacitas

15 IP Flow Technologies NetFlow Cisco proprietary Part of Cisco IOS Version 9 is the current version IP Flow Information Export (IPFIX) Open standard by the Internet Engineering Task Force (IETF) Based on Cisco NetFlow version 9 data-export format Extendable to define keys in addition to the 7 standard base keys Status on 9 th November 2006: Approved-announcement sent Capacitas

16 IP Flow Technologies sflow Managed by sflow.org, an international, multivendor, end-user forum Supported in the products of these manufacturers: AlaxalA Networks Alcatel Allied Telesis Comtec Systems Extreme Networks Force10 Networks Foundry Networks Hewlett-Packard Hitachi NEC Capacitas

17 Benefits of Deploying IP Flow Workload characterisation by organisational group Capacitas

18 Benefits of Deploying IP Flow Workload characterisation by layer 3 protocol type Capacitas

19 Benefits of Deploying IP Flow Workload characterisation by application: Capacitas

20 IP Flow Tools Market IP flow tools have traditionally been deployed within ISPs Increasingly enterprises have a requirement to deploy IP flow tools in order to understand end-to-end application performance Tools vendors are moving accordingly: The big four ; IBM, CA, BMC and HP all have an IP flow offering Many more specialist vendors have IP flow offerings There are offerings to meet all budgets and environment sizes For example to monitor flows from 8 routers and 80 interfaces, licence costs vary between 2k - 60k, depending on vendor Capacitas

21 IP Flow Tools Market Cisco is moving into the application space with its Service Orientated Network Architecture (SONA) SONA attempts to condense the network, services, and applications onto one intelligent fabric A key part of SONA is the Network Application Performance Analysis (NAPA) toolset NetFlow is part of this toolset Capacitas

22 IP Flow Tools Checklist Support for IPFIX if you have a mixed-vendor network environment Scalability is required in order to avoid multiple discrete collection engines Integration with SNMP-based measurements Reverse DNS lookup Configurable data retention Configurable data aggregation Evidence of the tool s scalability in a customer s site Scalability should be defined in terms of flow throughput across measured nodes Support for flow de-duplication Capacitas

23 Support for Flow De-duplication Corporate Data Centre CRM ; Source port 777 A single CRM flow will be measured 3 times in this example Manchester Office x London HQ x Newcastle Office x Capacitas

24 Manage Measurement Overhead Overhead of processing flow measurement on the router Testing of NetFlow by Cisco has demonstrated the following typical overheads: 10,000 active flows: 7% additional CPU utilization 45,000 active flows: 20% additional CPU utilization 65,000 active flows: 21% additional CPU utilization etsol/ns583/c654/cdccont_0900aecd80308a66.pdf Memory overhead is typically 64 bytes per flow So 65,000 active flows equates to 4 MB of DRAM Capacitas

25 Manage Measurement Overhead Limit the number of routers and interfaces that are enabled to measure IP flows Employ flow filtering at the router/collector engine Deploy collector engine(s) close to IP flow routers Capacitas

26 Manage Measurement Overhead Option to use packet sampling with NetFlow, IPFIX and sflow Cisco report that 1:100 sampling required only 3-percent additional CPU with 65,000 active flows Research indicates sampled NetFlow is accurate: Capacitas

27 IP Flow Considerations IP flow export packets sent over a congested network may be lost, depending on the transport used UDP User Datagram Protocol TCP Transmission Control Protocol Byte-streaming SCTP Stream Control Transmission Protocol Message-based, multi-streaming Exports over UDP may be lost in a congested network TCP and SCTP are congestion aware transports Support Matrix UDP TCP SCTP NetFlow Yes No Yes IPFIX Yes Yes Yes sflow Yes No No Capacitas

28 IP Flow Considerations Your network may be partially outsourced IP flow can be deployed at the hand-off points Your network may be fully outsourced IP flow deployment must be negotiated with your service provider Capacitas

29 Try it Out! Can my routers/switches measure flow information? Device Cisco 800, 1700, 2600 Cisco 1800, 2800, 3800 Cisco 4500 Cisco 6500 Cisco 7200, 7300, 7500 Cisco 7600 Cisco 10000, 12000, CRS-1 Cisco 2900, 3500, 3660, 3750 Supported Yes Yes Yes Yes Yes Yes Yes No Capacitas

30 Try it Out! Can my routers/switches measure flow information? Devices that support sflow are detailed here: Capacitas

31 Try it Out! Free/trial versions are available: Commercial: NetFlow Analyzer etflow/index.html Scrutinizer Open source: nprobe Extensive list of freeware and commercial tools: Capacitas

32 Deployment Tips Pilot to ascertain the flow throughput at your intended measurement points Only monitor flows where required. Many enterprises host applications centrally During pilot, validate measurements by comparing total network throughput given by flow tools to that given by SNMP-based measurements Capacitas

33 Summary and Conclusions Network capacity management need not be any more difficult than systems capacity management IP flow measurement is a key enabler to conduct end-to-end capacity management of an IT service IP flow measurement leverages existing investment in network hardware With the arrival of IPFIX, IP flow measurement is likely to become standards based and vendor independent Extensive choice of vendors for collector engine and management applications both in scale of deployment and cost of solution Capacitas

Enhancing Flow Based Network Monitoring

Enhancing Flow Based Network Monitoring Enhancing Flow Based Network Monitoring Flow-based technologies such as NetFlow, sflow, J-Flow, and IPFIX are increasingly popular tools used by network operators. The tools leverage the capabilities embedded

More information

NetFlow: What is it, why and how to use it? Miloš Zeković, milos.zekovic@soneco.rs. ICmyNet Chief Customer Officer Soneco d.o.o.

NetFlow: What is it, why and how to use it? Miloš Zeković, milos.zekovic@soneco.rs. ICmyNet Chief Customer Officer Soneco d.o.o. NetFlow: What is it, why and how to use it?, milos.zekovic@soneco.rs Soneco d.o.o. Serbia Agenda What is NetFlow? What are the benefits? How to deploy NetFlow? Questions 2 / 22 What is NetFlow? NetFlow

More information

Flow Analysis Versus Packet Analysis. What Should You Choose?

Flow Analysis Versus Packet Analysis. What Should You Choose? Flow Analysis Versus Packet Analysis. What Should You Choose? www.netfort.com Flow analysis can help to determine traffic statistics overall, but it falls short when you need to analyse a specific conversation

More information

Distributed-Enterprise Network Traffic Informatics A CIO s hand guide >>WHITE PAPER

Distributed-Enterprise Network Traffic Informatics A CIO s hand guide >>WHITE PAPER >>WHITE PAPER Distributed-Enterprise Network Traffic Informatics A CIO s hand guide This paper puts forth the importance of having an enterprise wide network traffic analysis tool in today s global enterprises.

More information

Enterprise Network Traffic Informatics

Enterprise Network Traffic Informatics A CIO's hand guide White Paper Summary This paper puts forth the importance of having an enterprise wide network traffic analysis tool in today's global enterprises. By harnessing the data contained in

More information

Network traffic monitoring and management. Sonia Panchen sonia.panchen@inmon.com 11 th November 2010

Network traffic monitoring and management. Sonia Panchen sonia.panchen@inmon.com 11 th November 2010 Network traffic monitoring and management Sonia Panchen sonia.panchen@inmon.com 11 th November 2010 Lecture outline What is network traffic management? Traffic management applications Traffic monitoring

More information

Traffic Monitoring using sflow

Traffic Monitoring using sflow Making the Network Visible www.sflow.org Traffic Monitoring using sflow With the ever-increasing reliance on network services for business critical applications, the smallest change in network usage can

More information

Cisco NetFlow TM Briefing Paper. Release 2.2 Monday, 02 August 2004

Cisco NetFlow TM Briefing Paper. Release 2.2 Monday, 02 August 2004 Cisco NetFlow TM Briefing Paper Release 2.2 Monday, 02 August 2004 Contents EXECUTIVE SUMMARY...3 THE PROBLEM...3 THE TRADITIONAL SOLUTIONS...4 COMPARISON WITH OTHER TECHNIQUES...6 CISCO NETFLOW OVERVIEW...7

More information

Cisco IOS Flexible NetFlow Technology

Cisco IOS Flexible NetFlow Technology Cisco IOS Flexible NetFlow Technology Last Updated: December 2008 The Challenge: The ability to characterize IP traffic and understand the origin, the traffic destination, the time of day, the application

More information

Foglight NMS Overview

Foglight NMS Overview Page 1 of 5 Foglight NMS Overview Foglight Network Management System (NMS) is a robust and complete network monitoring solution that allows you to thoroughly and efficiently manage your network. It is

More information

Viete, čo robia Vaši užívatelia na sieti? Roman Tuchyňa, CSA

Viete, čo robia Vaši užívatelia na sieti? Roman Tuchyňa, CSA Viete, čo robia Vaši užívatelia na sieti? Roman Tuchyňa, CSA What is ReporterAnalyzer? ReporterAnalyzer gives network professionals insight into how application traffic is impacting network performance.

More information

CISCO INFORMATION TECHNOLOGY AT WORK CASE STUDY: CISCO IOS NETFLOW TECHNOLOGY

CISCO INFORMATION TECHNOLOGY AT WORK CASE STUDY: CISCO IOS NETFLOW TECHNOLOGY CISCO INFORMATION TECHNOLOGY AT WORK CASE STUDY: CISCO IOS NETFLOW TECHNOLOGY CISCO INFORMATION TECHNOLOGY SEPTEMBER 2004 1 Overview Challenge To troubleshoot capacity and quality problems and to understand

More information

Whitepaper. NetFlow vs. sflow: A Technical Review. plixer. International

Whitepaper. NetFlow vs. sflow: A Technical Review. plixer. International Whitepaper NetFlow vs. sflow: A Technical Review 1 plixer Table of Contents Abstract Introduction NetFlow sflow Lab Configuration Hardware Collection and Analysis Utilization Measurements Top Hosts Don

More information

Network congestion control using NetFlow

Network congestion control using NetFlow Network congestion control using NetFlow Maxim A. Kolosovskiy Elena N. Kryuchkova Altai State Technical University, Russia Abstract The goal of congestion control is to avoid congestion in network elements.

More information

Accurate End-to-End Performance Management Using CA Application Delivery Analysis and Cisco Wide Area Application Services

Accurate End-to-End Performance Management Using CA Application Delivery Analysis and Cisco Wide Area Application Services White Paper Accurate End-to-End Performance Management Using CA Application Delivery Analysis and Cisco Wide Area Application Services What You Will Learn IT departments are increasingly relying on best-in-class

More information

Gaining Operational Efficiencies with the Enterasys S-Series

Gaining Operational Efficiencies with the Enterasys S-Series Gaining Operational Efficiencies with the Enterasys S-Series Hi-Fidelity NetFlow There is nothing more important than our customers. Gaining Operational Efficiencies with the Enterasys S-Series Introduction

More information

299-01 Q&A. DEMO Version

299-01 Q&A. DEMO Version 299-01 Riverbed Certified Solutions Professional Network Performance Management Q&A DEMO Version Copyright (c) 2014 Chinatag LLC. All rights reserved. Important Note Please Read Carefully For demonstration

More information

Understanding Flow and Packet Deduplication

Understanding Flow and Packet Deduplication WHITE PAPER Understanding Flow and Packet Deduplication Riverbed Technical Marketing 2012 Riverbed Technology. All rights reserved. Riverbed, Cloud Steelhead, Granite, Interceptor, RiOS, Steelhead, Think

More information

NetFlow-Lite offers network administrators and engineers the following capabilities:

NetFlow-Lite offers network administrators and engineers the following capabilities: Solution Overview Cisco NetFlow-Lite Introduction As networks become more complex and organizations enable more applications, traffic patterns become more diverse and unpredictable. Organizations require

More information

NetFlow use cases. ICmyNet / NetVizura. Miloš Zeković, milos.zekovic@soneco.rs. ICmyNet Chief Customer Officer Soneco d.o.o.

NetFlow use cases. ICmyNet / NetVizura. Miloš Zeković, milos.zekovic@soneco.rs. ICmyNet Chief Customer Officer Soneco d.o.o. NetFlow use cases ICmyNet / NetVizura, milos.zekovic@soneco.rs Soneco d.o.o. Serbia Agenda ICmyNet / NetVizura overview Use cases / case studies Statistics per exporter/interfaces Traffic Patterns NREN

More information

IPv6 network management. 6DEPLOY. IPv6 Deployment and Support

IPv6 network management. 6DEPLOY. IPv6 Deployment and Support IPv6 network management 6DEPLOY. IPv6 Deployment and Support 1 Contributions Simon Muyal, RENATER Bernard Tuy, RENATER Jérôme Durand, RENATER Ralf Wolter, Cisco Patrick Grossetête, Cisco 10/28/2010 IPv6

More information

SolarWinds Technical Reference

SolarWinds Technical Reference SolarWinds Technical Reference Best Practices for Troubleshooting NetFlow Introduction... 1 NetFlow Overview... 1 Troubleshooting NetFlow Service Status Issues... 3 Troubleshooting NetFlow Source Issues...

More information

Scalable Extraction, Aggregation, and Response to Network Intelligence

Scalable Extraction, Aggregation, and Response to Network Intelligence Scalable Extraction, Aggregation, and Response to Network Intelligence Agenda Explain the two major limitations of using Netflow for Network Monitoring Scalability and Visibility How to resolve these issues

More information

SNMP and Beyond: A Survey of Network Performance Monitoring Tools

SNMP and Beyond: A Survey of Network Performance Monitoring Tools http://www.cse.wustl.edu/~jain/cse567-06/ftp/net_traffic_monitors2/ind... 1 of 11 SNMP and Beyond: A Survey of Network Performance Monitoring Tools Paul Moceri, paul.moceri@gmail.com Abstract The growing

More information

Wireshark Developer and User Conference

Wireshark Developer and User Conference Wireshark Developer and User Conference Using NetFlow to Analyze Your Network June 15 th, 2011 Christopher J. White Manager Applica6ons and Analy6cs, Cascade Riverbed Technology cwhite@riverbed.com SHARKFEST

More information

Best of Breed of an ITIL based IT Monitoring. The System Management strategy of NetEye

Best of Breed of an ITIL based IT Monitoring. The System Management strategy of NetEye Best of Breed of an ITIL based IT Monitoring The System Management strategy of NetEye by Georg Kostner 5/11/2012 1 IT Services and IT Service Management IT Services means provisioning of added value for

More information

IPv6 network management. Where and when?

IPv6 network management. Where and when? IPv6 network management 1 Contributions Simon Muyal, RENATER Bernard Tuy, RENATER Jérôme Durand, RENATER Ralf Wolter, Cisco Patrick Grossetête, Cisco Munechika Sumikawa, Hitachi Patrick Paul, 6WIND 2 Agenda

More information

A message from Plixer International:

A message from Plixer International: Scrutinizer Getting Started Guide A message from Plixer International: Thank you for taking the time to download and install Scrutinizer. We believe that Scrutinizer is a useful tool for any Network industry

More information

Flow Based Traffic Analysis

Flow Based Traffic Analysis Flow based Traffic Analysis Muraleedharan N C-DAC Bangalore Electronics City murali@ncb.ernet.in Challenges in Packet level traffic Analysis Network traffic grows in volume and complexity Capture and decode

More information

Scrutinizer. Getting Started Guide. A message from Plixer International:

Scrutinizer. Getting Started Guide. A message from Plixer International: Scrutinizer Getting Started Guide A message from Plixer International: Thank you for taking the time to download and install Scrutinizer NetFlow & sflow Analyzer. We believe that Scrutinizer is a useful

More information

SolarWinds Certified Professional. Exam Preparation Guide

SolarWinds Certified Professional. Exam Preparation Guide SolarWinds Certified Professional Exam Preparation Guide Introduction The SolarWinds Certified Professional (SCP) exam is designed to test your knowledge of general networking management topics and how

More information

Traffic monitoring with sflow and ProCurve Manager Plus

Traffic monitoring with sflow and ProCurve Manager Plus An HP ProCurve Networking Application Note Traffic monitoring with sflow and ProCurve Manager Plus Contents 1. Introduction... 3 2. Prerequisites... 3 3. Network diagram... 3 4. About the sflow protocol...

More information

NetFlow FlowAnalyzer Overview

NetFlow FlowAnalyzer Overview CHAPTER 1 FlowAnalyzer Overview This chapter describes the FlowAnalyzer system and its components. This system is used to read, analyze, and display switching data collected by the FlowCollector application.

More information

Introduction to Cisco IOS Flexible NetFlow

Introduction to Cisco IOS Flexible NetFlow Introduction to Cisco IOS Flexible NetFlow Last updated: September 2008 The next-generation in flow technology allowing optimization of the network infrastructure, reducing operation costs, improving capacity

More information

IPV6 流 量 分 析 探 讨 北 京 大 学 计 算 中 心 周 昌 令

IPV6 流 量 分 析 探 讨 北 京 大 学 计 算 中 心 周 昌 令 IPV6 流 量 分 析 探 讨 北 京 大 学 计 算 中 心 周 昌 令 1 内 容 流 量 分 析 简 介 IPv6 下 的 新 问 题 和 挑 战 协 议 格 式 变 更 用 户 行 为 特 征 变 更 安 全 问 题 演 化 流 量 导 出 手 段 变 化 设 备 参 考 配 置 流 量 工 具 总 结 2 流 量 分 析 简 介 流 量 分 析 目 标 who, what, where,

More information

Brocade sflow for Network Traffic Monitoring

Brocade sflow for Network Traffic Monitoring WHITE PAPER Service provider Brocade sflow for Network Traffic Monitoring Although both sflow and NetFlow enjoy widespread industry adoption, sflow is the better technology for traffic monitoring. Business

More information

Recommendations for Network Traffic Analysis Using the NetFlow Protocol Best Practice Document

Recommendations for Network Traffic Analysis Using the NetFlow Protocol Best Practice Document Recommendations for Network Traffic Analysis Using the NetFlow Protocol Best Practice Document Produced by AMRES NMS Group (AMRES BPD 104) Author: Ivan Ivanović November 2011 TERENA 2010. All rights reserved.

More information

Best Practices for NetFlow/IPFIX Analysis and Reporting

Best Practices for NetFlow/IPFIX Analysis and Reporting WHITEPAPER Best Practices for NetFlow/IPFIX Analysis and Reporting IT managers and network administrators are constantly making decisions affecting critical business activity on the network. Management

More information

INCREASE NETWORK VISIBILITY AND REDUCE SECURITY THREATS WITH IMC FLOW ANALYSIS TOOLS

INCREASE NETWORK VISIBILITY AND REDUCE SECURITY THREATS WITH IMC FLOW ANALYSIS TOOLS WHITE PAPER INCREASE NETWORK VISIBILITY AND REDUCE SECURITY THREATS WITH IMC FLOW ANALYSIS TOOLS Network administrators and security teams can gain valuable insight into network health in real-time by

More information

IP SLAs Overview. Finding Feature Information. Information About IP SLAs. IP SLAs Technology Overview

IP SLAs Overview. Finding Feature Information. Information About IP SLAs. IP SLAs Technology Overview This module describes IP Service Level Agreements (SLAs). IP SLAs allows Cisco customers to analyze IP service levels for IP applications and services, to increase productivity, to lower operational costs,

More information

Question: 3 When using Application Intelligence, Server Time may be defined as.

Question: 3 When using Application Intelligence, Server Time may be defined as. 1 Network General - 1T6-521 Application Performance Analysis and Troubleshooting Question: 1 One component in an application turn is. A. Server response time B. Network process time C. Application response

More information

Application Latency Monitoring using nprobe

Application Latency Monitoring using nprobe Application Latency Monitoring using nprobe Luca Deri Problem Statement Users demand services measurements. Network boxes provide simple, aggregated network measurements. You cannot always

More information

Cisco and Visual Network Systems: Implement an End-to-End Application Performance Management Solution for Managed Services

Cisco and Visual Network Systems: Implement an End-to-End Application Performance Management Solution for Managed Services Cisco and Visual Network Systems: Implement an End-to-End Application Performance Management Solution for Managed Services What You Will Learn In today s economy, IT departments are challenged to decide

More information

Using The Paessler PRTG Traffic Grapher In a Cisco Wide Area Application Services Proof of Concept

Using The Paessler PRTG Traffic Grapher In a Cisco Wide Area Application Services Proof of Concept Using The Paessler PRTG Traffic Grapher In a Cisco Wide Area Application Services Proof of Concept What You Will Learn Understanding bandwidth traffic and resource consumption is vital to enhanced and

More information

NetFlow Tips and Tricks

NetFlow Tips and Tricks NetFlow Tips and Tricks Introduction... 2 NetFlow and other Flow Technologies... 2 NetFlow Tips and Tricks... 4 Tech Tip 1: Troubleshooting Network Issues... 4 Tech Tip 2: Network Anomaly Detection...

More information

SolarWinds Technical Reference

SolarWinds Technical Reference SolarWinds Technical Reference New to Networking Volume 3 NetFlow Basics and Deployment Strategies Section 1 The Need for Flow Analysis...1 Section 2 How does NetFlow Work?...1 The NetFlow Cache...2 The

More information

NetFlow Tracker Overview. Mike McGrath x ccie CTO mike@crannog-software.com

NetFlow Tracker Overview. Mike McGrath x ccie CTO mike@crannog-software.com NetFlow Tracker Overview Mike McGrath x ccie CTO mike@crannog-software.com 2006 Copyright Crannog Software www.crannog-software.com 1 Copyright Crannog Software www.crannog-software.com 2 LEVELS OF NETWORK

More information

This topic lists the key mechanisms use to implement QoS in an IP network.

This topic lists the key mechanisms use to implement QoS in an IP network. IP QoS Mechanisms QoS Mechanisms This topic lists the key mechanisms use to implement QoS in an IP network. QoS Mechanisms Classification: Each class-oriented QoS mechanism has to support some type of

More information

Network Monitoring Comparison

Network Monitoring Comparison Network Monitoring Comparison vs Network Monitoring is essential for every network administrator. It determines how effective your IT team is at solving problems or even completely eliminating them. Even

More information

Fluke Networks NetFlow Tracker

Fluke Networks NetFlow Tracker Fluke Networks NetFlow Tracker Quick Install Guide for Product Evaluations Pre-installation and Installation Tasks Minimum System Requirements The type of system required to run NetFlow Tracker depends

More information

Securing and Monitoring BYOD Networks using NetFlow

Securing and Monitoring BYOD Networks using NetFlow Securing and Monitoring BYOD Networks using NetFlow How NetFlow can help with Security Analysis, Application Detection and Traffic Monitoring Don Thomas Jacob Technical Marketing Engineer ManageEngine

More information

Network Management Back to the Basics. Brad Hale

Network Management Back to the Basics. Brad Hale Network Management Back to the Basics Brad Hale Table of Contents The Fundamental Protocols of Network Management... 3 Simple Network Management Protocol (SNMP)...4 Management Information Base (MIB)...6

More information

Introduction. The Inherent Unpredictability of IP Networks # $# #

Introduction. The Inherent Unpredictability of IP Networks # $# # Introduction " $ % & ' The Inherent Unpredictability of IP Networks A major reason that IP became the de facto worldwide standard for data communications networks is its automated resiliency based on intelligent

More information

IPv6 networks management. Simon.Muyal@renater.fr

IPv6 networks management. Simon.Muyal@renater.fr IPv6 networks management Simon.Muyal@renater.fr Contribs Bernard Tuy, Renater Simon Muyal, Renater Ralf Wolter, Cisco Patrick Grossetête, Cisco Munechika Sumikawa, Hitachi Patrick Paul, 6WIND Simon Muyal

More information

J-Flow on J Series Services Routers and Branch SRX Series Services Gateways

J-Flow on J Series Services Routers and Branch SRX Series Services Gateways APPLICATION NOTE Juniper Flow Monitoring J-Flow on J Series Services Routers and Branch SRX Series Services Gateways Copyright 2011, Juniper Networks, Inc. 1 APPLICATION NOTE - Juniper Flow Monitoring

More information

Open Source in Network Administration: the ntop Project

Open Source in Network Administration: the ntop Project Open Source in Network Administration: the ntop Project Luca Deri 1 Project History Started in 1997 as monitoring application for the Univ. of Pisa 1998: First public release v 0.4 (GPL2) 1999-2002:

More information

NetFlow Performance Analysis

NetFlow Performance Analysis NetFlow Performance Analysis Last Updated: May, 2007 The Cisco IOS NetFlow feature set allows for the tracking of individual IP flows as they are received at a Cisco router or switching device. Network

More information

Introduction to Netflow

Introduction to Netflow Introduction to Netflow Mike Jager Network Startup Resource Center mike.jager@synack.co.nz These materials are licensed under the Creative Commons Attribution-NonCommercial 4.0 International license (http://creativecommons.org/licenses/by-nc/4.0/)

More information

Catalyst 6500/6000 Switches NetFlow Configuration and Troubleshooting

Catalyst 6500/6000 Switches NetFlow Configuration and Troubleshooting Catalyst 6500/6000 Switches NetFlow Configuration and Troubleshooting Document ID: 70974 Introduction Prerequisites Requirements Components Used Conventions Background Information Configure Network Diagram

More information

Cisco NetFlow Generation Appliance (NGA) 3140

Cisco NetFlow Generation Appliance (NGA) 3140 Q&A Cisco NetFlow Generation Appliance (NGA) 3140 General Overview Q. What is Cisco NetFlow Generation Appliance (NGA) 3140? A. Cisco NetFlow Generation Appliance 3140 is purpose-built, high-performance

More information

HP Intelligent Management Center v7.1 Network Traffic Analyzer Administrator Guide

HP Intelligent Management Center v7.1 Network Traffic Analyzer Administrator Guide HP Intelligent Management Center v7.1 Network Traffic Analyzer Administrator Guide Abstract This guide contains comprehensive information for network administrators, engineers, and operators working with

More information

Top-Down Network Design

Top-Down Network Design Top-Down Network Design Chapter Four Characterizing Network Traffic Copyright 2010 Cisco Press & Priscilla Oppenheimer Network Traffic Factors Traffic flow unidirectional, bidirectional symmetric, asymmetric

More information

Plugging Network Security Holes using NetFlow. Loopholes in todays network security solutions and how NetFlow can help

Plugging Network Security Holes using NetFlow. Loopholes in todays network security solutions and how NetFlow can help Plugging Network Security Holes using NetFlow Loopholes in todays network security solutions and how NetFlow can help About ManageEngine Network Servers & Applications Desktop ServiceDesk Windows Infrastructure

More information

NetFlow/IPFIX Various Thoughts

NetFlow/IPFIX Various Thoughts NetFlow/IPFIX Various Thoughts Paul Aitken & Benoit Claise 3 rd NMRG Workshop on NetFlow/IPFIX Usage in Network Management, July 2010 1 B #1 Application Visibility Business Case NetFlow (L3/L4) DPI Application

More information

NetFlow v9 Export Format

NetFlow v9 Export Format NetFlow v9 Export Format With this release, NetFlow can export data in NetFlow v9 (version 9) export format. This format is flexible and extensible, which provides the versatility needed to support new

More information

Configuring Flexible NetFlow

Configuring Flexible NetFlow CHAPTER 62 Note Flexible NetFlow is only supported on Supervisor Engine 7-E, Supervisor Engine 7L-E, and Catalyst 4500X. Flow is defined as a unique set of key fields attributes, which might include fields

More information

TE in action. Some problems that TE tries to solve. Concept of Traffic Engineering (TE)

TE in action. Some problems that TE tries to solve. Concept of Traffic Engineering (TE) 1/28 2/28 TE in action S-38.3192 Verkkopalvelujen tuotanto S-38.3192 Network Service Provisioning Networking laboratory 3/28 4/28 Concept of Traffic Engineering (TE) Traffic Engineering (TE) (Traffic Management)

More information

Flow Monitor for WhatsUp Gold v16.2 User Guide

Flow Monitor for WhatsUp Gold v16.2 User Guide Flow Monitor for WhatsUp Gold v16.2 User Guide Contents Table of Contents Flow Monitor Overview Welcome to WhatsUp Gold Flow Monitor... 1 What is Flow Monitor?... 2 How does Flow Monitor work?... 2 System

More information

plixer Scrutinizer Competitor Worksheet Visualization of Network Health Unauthorized application deployments Detect DNS communication tunnels

plixer Scrutinizer Competitor Worksheet Visualization of Network Health Unauthorized application deployments Detect DNS communication tunnels Scrutinizer Competitor Worksheet Scrutinizer Malware Incident Response Scrutinizer is a massively scalable, distributed flow collection system that provides a single interface for all traffic related to

More information

Case Study: Instrumenting a Network for NetFlow Security Visualization Tools

Case Study: Instrumenting a Network for NetFlow Security Visualization Tools Case Study: Instrumenting a Network for NetFlow Security Visualization Tools William Yurcik* Yifan Li SIFT Research Group National Center for Supercomputing Applications (NCSA) University of Illinois at

More information

Love at Second Sight. Written by Drew Robb

Love at Second Sight. Written by Drew Robb Love at Second Sight Once limited to monitoring networking equipment at large organizations, a new generation of NetFlow and sflow monitoring tools are gaining ground with data centers large and small

More information

The OSI Model: Understanding the Seven Layers of Computer Networks

The OSI Model: Understanding the Seven Layers of Computer Networks Expert Reference Series of White Papers The OSI Model: Understanding the Seven Layers of Computer Networks 1-800-COURSES www.globalknowledge.com The OSI Model: Understanding the Seven Layers of Computer

More information

Network Monitoring and Management NetFlow Overview

Network Monitoring and Management NetFlow Overview Network Monitoring and Management NetFlow Overview These materials are licensed under the Creative Commons Attribution-Noncommercial 3.0 Unported license (http://creativecommons.org/licenses/by-nc/3.0/)

More information

Cisco Application Networking for IBM WebSphere

Cisco Application Networking for IBM WebSphere Cisco Application Networking for IBM WebSphere Faster Downloads and Site Navigation, Less Bandwidth and Server Processing, and Greater Availability for Global Deployments What You Will Learn To address

More information

Extending Network Visibility by Leveraging NetFlow and sflow Technologies

Extending Network Visibility by Leveraging NetFlow and sflow Technologies Extending Network Visibility by Leveraging and sflow Technologies This paper shows how a network analyzer that can leverage and sflow technologies can provide extended visibility into enterprise networks

More information

Cisco IOS Flexible NetFlow Command Reference

Cisco IOS Flexible NetFlow Command Reference Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 THE SPECIFICATIONS AND INFORMATION

More information

Cisco Intercloud Fabric Security Features: Technical Overview

Cisco Intercloud Fabric Security Features: Technical Overview White Paper Cisco Intercloud Fabric Security Features: Technical Overview White Paper May 2015 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 1 of

More information

8. 網路流量管理 Network Traffic Management

8. 網路流量管理 Network Traffic Management 8. 網路流量管理 Network Traffic Management Measurement vs. Metrics end-to-end performance topology, configuration, routing, link properties state active measurements active routes active topology link bit error

More information

IPv6 Network Management. touch@coe.psu.ac.th

IPv6 Network Management. touch@coe.psu.ac.th IPv6 Network Management touch@coe.psu.ac.th Outline Introduction Managing IPv6 networks SNMP over IPv6 Management platforms Management tools IPv6 LAN IPv6 MAN/WAN Examples/Demos Introduction Manage a network:

More information

Configuring NetFlow. Information About NetFlow. NetFlow Overview. Send document comments to nexus7k-docfeedback@cisco.com. CHAPTER

Configuring NetFlow. Information About NetFlow. NetFlow Overview. Send document comments to nexus7k-docfeedback@cisco.com. CHAPTER CHAPTER 19 This chapter describes how to configure the NetFlow feature on Cisco NX-OS devices. This chapter includes the following sections: Information About NetFlow, page 19-1 Licensing Requirements

More information

Research on Errors of Utilized Bandwidth Measured by NetFlow

Research on Errors of Utilized Bandwidth Measured by NetFlow Research on s of Utilized Bandwidth Measured by NetFlow Haiting Zhu 1, Xiaoguo Zhang 1,2, Wei Ding 1 1 School of Computer Science and Engineering, Southeast University, Nanjing 211189, China 2 Electronic

More information

INTRODUCTION TO FIREWALL SECURITY

INTRODUCTION TO FIREWALL SECURITY INTRODUCTION TO FIREWALL SECURITY SESSION 1 Agenda Introduction to Firewalls Types of Firewalls Modes and Deployments Key Features in a Firewall Emerging Trends 2 Printed in USA. What Is a Firewall DMZ

More information

Monitoring high-speed networks using ntop. Luca Deri <deri@ntop.org>

Monitoring high-speed networks using ntop. Luca Deri <deri@ntop.org> Monitoring high-speed networks using ntop Luca Deri 1 Project History Started in 1997 as monitoring application for the Univ. of Pisa 1998: First public release v 0.4 (GPL2) 1999-2002:

More information

ICND2 NetFlow. Question 1. What are the benefit of using Netflow? (Choose three) A. Network, Application & User Monitoring. B.

ICND2 NetFlow. Question 1. What are the benefit of using Netflow? (Choose three) A. Network, Application & User Monitoring. B. ICND2 NetFlow Question 1 What are the benefit of using Netflow? (Choose three) A. Network, Application & User Monitoring B. Network Planning C. Security Analysis D. Accounting/Billing Answer: A C D NetFlow

More information

An Introduction to VoIP Protocols

An Introduction to VoIP Protocols An Introduction to VoIP Protocols www.netqos.com Voice over IP (VoIP) offers the vision of a converged network carrying multiple types of traffic (voice, video, and data, to name a few). To carry out this

More information

Overview. Why use netflow? What is a flow? Deploying Netflow Performance Impact

Overview. Why use netflow? What is a flow? Deploying Netflow Performance Impact Netflow 6/12/07 1 Overview Why use netflow? What is a flow? Deploying Netflow Performance Impact 2 Caveats Netflow is a brand name like Kleenex. It was developed by Cisco Juniper uses the term cflowd for

More information

Using IPM to Measure Network Performance

Using IPM to Measure Network Performance CHAPTER 3 Using IPM to Measure Network Performance This chapter provides details on using IPM to measure latency, jitter, availability, packet loss, and errors. It includes the following sections: Measuring

More information

NEED NETWORK VISIBILITY? www.netusage.net TOTAL NETWORK VISIBILITY

NEED NETWORK VISIBILITY? www.netusage.net TOTAL NETWORK VISIBILITY NEED NETWORK VISIBILITY? Look Inside >>>>>> www.netusage.net TOTAL NETWORK VISIBILITY Netusage in the enterprise Your Top 10 Network Dilemmas 1. Do you know at any point in time what applications are

More information

Quality of Service (QoS) for Enterprise Networks. Learn How to Configure QoS on Cisco Routers. Share:

Quality of Service (QoS) for Enterprise Networks. Learn How to Configure QoS on Cisco Routers. Share: Quality of Service (QoS) for Enterprise Networks Learn How to Configure QoS on Cisco Routers Share: Quality of Service (QoS) Overview Networks today are required to deliver secure, measurable and guaranteed

More information

The Value of Flow Data for Peering Decisions

The Value of Flow Data for Peering Decisions The Value of Flow Data for Peering Decisions Hurricane Electric IPv6 Native Backbone Massive Peering! Martin J. Levy Director, IPv6 Strategy Hurricane Electric 22 nd August 2012 Introduction Goal of this

More information

Networking Fundamentals Part of the SolarWinds IT Management Educational Series

Networking Fundamentals Part of the SolarWinds IT Management Educational Series Networking Fundamentals Part of the SolarWinds IT Management Educational Series V o l u m e 3 NetFlow Basics and Deployment Strategies This paper examines NetFlow technology and implementation considerations.

More information

Configuring NetFlow. Information About NetFlow. NetFlow Overview. Send document comments to nexus7k-docfeedback@cisco.com. CHAPTER

Configuring NetFlow. Information About NetFlow. NetFlow Overview. Send document comments to nexus7k-docfeedback@cisco.com. CHAPTER CHAPTER 16 This chapter describes how to configure the NetFlow feature on Cisco NX-OS devices. This chapter includes the following sections: Information About NetFlow, page 16-1 Licensing Requirements

More information

Configuring NetFlow. Information About NetFlow. Send document comments to nexus1k-docfeedback@cisco.com. CHAPTER

Configuring NetFlow. Information About NetFlow. Send document comments to nexus1k-docfeedback@cisco.com. CHAPTER CHAPTER 11 Use this chapter to configure NetFlow to characterize IP traffic based on its source, destination, timing, and application information, to assess network availability and performance. This chapter

More information

Redefine Network Visibility in the Data Center with the Cisco NetFlow Generation Appliance

Redefine Network Visibility in the Data Center with the Cisco NetFlow Generation Appliance White Paper Redefine Network Visibility in the Data Center with the Cisco NetFlow Generation Appliance What You Will Learn Modern data centers power businesses through a new generation of applications,

More information

Traffic analysis with NetFlow

Traffic analysis with NetFlow Traffic analysis with NetFlow Paolo Lucente http://www.pmacct.net/ RIPE Regional meeting, Dubrovnik Sep 2011 Traffic analysis with NetFlow Agenda o o whoami: Paolo & pmacct Ramblings:

More information

Study of Network Performance Monitoring Tools-SNMP

Study of Network Performance Monitoring Tools-SNMP 310 Study of Network Performance Monitoring Tools-SNMP Mr. G.S. Nagaraja, Ranjana R.Chittal, Kamod Kumar Summary Computer networks have influenced the software industry by providing enormous resources

More information

Network Performance Management Solutions Architecture

Network Performance Management Solutions Architecture Network Performance Management Solutions Architecture agility made possible Network Performance Management solutions from CA Technologies compliment your services to deliver easily implemented and maintained

More information

Smart Tips. Enabling WAN Load Balancing. Key Features. Network Diagram. Overview. Featured Products. WAN Failover. Enabling WAN Load Balancing Page 1

Smart Tips. Enabling WAN Load Balancing. Key Features. Network Diagram. Overview. Featured Products. WAN Failover. Enabling WAN Load Balancing Page 1 Smart Tips Enabling WAN Load Balancing Overview Many small businesses today use broadband links such as DSL or Cable, favoring them over the traditional link such as T1/E1 or leased lines because of the

More information